In honor of the great Woody Guthrie, who would have turned 102 today, July 14, here's one of the greatest folks songs ever written. Guthrie wrote "This Land is Your Land" in 1940 and recorded it in 1944, but it wasn't released until 1951.

According to Wiki, Guthrie based it on an existing melody, "in critical response to Irving Berlin's 'God Bless America,' which Guthrie considered unrealistic and complacent. Tired of hearing Kate Smith sing it on the radio, he wrote a response originally called "God Blessed America". Guthrie varied the lyrics over time, sometimes including more overtly political verses in line with his sympathetic views of communism, than appear in recordings or publications."

And because we like the song so much, two more versions: Pete Seeger and a guy named Bruce sang it at President Obama's inauguration ceremonies, 2009.